/* about.css - 既存CSSの補足用 */

/* 固定ヘッダー対応（必須） */
body {
  padding-top: 100px; /* 関大共通ヘッダー(25px) + サイトヘッダー(75px) */
}

/*hero上部調整*/
@media screen and (max-width: 768px){
	body {padding-top:0;margin-top: 125px;}
}
.breadcrumb {
  margin-top: 100px; /* 固定ヘッダー分の余白 */display:none;
}


/* メインコンテンツエリアのcontainerをblock表示に変更 */
.main-content .container {
  display: block !important;
  align-items: initial;
  justify-content: initial;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* コンテンツセクション */
.content-section {
  margin-bottom: 80px;
}

.content-section:last-child {
  margin-bottom: 0;
}

/* セクションタイトル */
.section-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 40px;
  padding-bottom: 15px;
  border-bottom: 3px solid #ff6b6b;
  text-align: center;
}

.subsection-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: #333;
  margin-top: 60px;
  margin-bottom: 30px;
  padding-left: 15px;
  border-left: 5px solid #ff6b6b;
}

.subsection-lead {
  font-size: 1.76rem;
  font-weight: 600;
  color: #555;
  margin-bottom: 30px;
  text-align: center;
}

/* コンセプトコンテンツ */
.concept-content {
  max-width: 900px;
  margin: 0 auto;
}

.lead-text {
  font-size: 2.08rem;
  font-weight: 600;
  line-height: 1.8;
  color: #333;
  margin-bottom: 30px;
}

.concept-content p {
  font-size: 1.68rem;
  line-height: 1.9;
  color: #555;
  margin-bottom: 20px;
}

.center-text {
  text-align: center;
  font-size: 1.76rem;
  color: #555;
  margin-bottom: 40px;
}

/* SIDEグリッド */
.side-concept {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  padding: 60px 40px;
  border-radius: 15px;
  margin-bottom: 60px;
}

.side-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.side-item {
  background: white;
  padding: 30px 25px;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.side-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.side-item h4 {
  font-size: 2.08rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 15px;
}

.side-letter {
  color: #ff6b6b;
  font-size: 2.88rem;
  font-weight: 800;
  margin-right: 5px;
}

.side-item p {
  font-size: 1.52rem;
  line-height: 1.7;
  color: #666;
}

/* 技術セクション */
.technology-section {
  margin-top: 60px;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.tech-card {
  background: #fff;
  border: 2px solid #e0e0e0;
  border-radius: 10px;
  padding: 30px 25px;
  transition: all 0.3s ease;
}

.tech-card:hover {
  border-color: #ff6b6b;
  box-shadow: 0 8px 20px rgba(255, 107, 107, 0.15);
  transform: translateY(-3px);
}

.tech-icon {
  display: inline-block;
  background: #ff6b6b;
  color: white;
  font-size: 1.44rem;
  font-weight: 600;
  padding: 8px 15px;
  border-radius: 20px;
  margin-bottom: 15px;
}

.tech-card h4 {
  font-size: 1.92rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 15px;
  line-height: 1.5;
}

.tech-card p {
  font-size: 1.52rem;
  line-height: 1.8;
  color: #666;
}

/* グローバル教育 */
.global-section {
  background: #f8f9fa;
  padding: 60px 40px;
  border-radius: 15px;
  margin-top: 60px;
}

.global-timeline {
  max-width: 900px;
  margin: 40px auto 0;
}

.timeline-item {
  background: white;
  border-left: 4px solid #ff6b6b;
  padding: 25px 30px;
  margin-bottom: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: relative;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-year {
  display: inline-block;
  background: #ff6b6b;
  color: white;
  font-size: 1.6rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 20px;
  margin-bottom: 15px;
}

.timeline-item h4 {
  font-size: 2.08rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 15px;
}

.timeline-item ul {
  list-style: none;
  padding-left: 0;
}

.timeline-item ul li {
  padding-left: 25px;
  margin-bottom: 10px;
  position: relative;
  font-size: 1.52rem;
  line-height: 1.7;
  color: #555;
}

.timeline-item ul li:before {
  content: "●";
  color: #ff6b6b;
  position: absolute;
  left: 0;
  font-size: 1.28rem;
}

/* データサイエンス */
.datascience-section {
  margin-top: 60px;
}

.datascience-section p {
  font-size: 1.68rem;
  line-height: 1.9;
  color: #555;
  margin-bottom: 30px;
}

.certification-box {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 30px 40px;
  border-radius: 10px;
  margin-top: 40px;
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.certification-box p {
  color: white;
  margin-bottom: 15px;
}

.certification-box p:last-child {
  margin-bottom: 0;
}

.certification-box strong {
  font-size: 1.92rem;
  display: block;
  margin-bottom: 10px;
}

/* 研究レポート */
.research-section {
  margin-top: 60px;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.research-card {
  background: white;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.research-card:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

.research-card h4 {
  font-size: 1.92rem;
  font-weight: 700;
  color: #ff6b6b;
  margin-bottom: 15px;
  line-height: 1.5;
}

.research-author {
  font-size: 1.44rem;
  font-weight: 600;
  color: #666;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 1px solid #e0e0e0;
}

.research-card p {
  font-size: 1.52rem;
  line-height: 1.8;
  color: #555;
}

/* 学科紹介 */
.department-intro {
  background: #f8f9fa;
  padding: 60px 40px;
  border-radius: 15px;
}

.dept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.dept-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.dept-card:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

.dept-image {
  width: 100%;
  height: 180px;
  overflow: hidden;
  background: #f0f0f0;
}

.dept-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.dept-card:hover .dept-image img {
  transform: scale(1.05);
}

.dept-content {
  padding: 25px;
}

.dept-content h3 {
  font-size: 2.08rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 10px;
}

.dept-content h3 a {
  color: #333;
  text-decoration: none;
  transition: color 0.3s ease;
}

.dept-content h3 a:hover {
  color: #ff6b6b;
}

.dept-capacity {
  font-size: 1.44rem;
  font-weight: 600;
  color: #ff6b6b;
  margin-bottom: 15px;
}

.dept-content p {
  font-size: 1.52rem;
  line-height: 1.7;
  color: #666;
  margin-bottom: 20px;
}

.btn-more {
  display: inline-block;
  padding: 10px 25px;
  background: #ff6b6b;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-size: 1.44rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-more:hover {
  background: #e65555;
  transform: translateX(5px);
}

/* 将来のフィールド */
.career-field {
  margin-top: 60px;
}

.career-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.career-card {
  background: white;
  border: 2px solid #e0e0e0;
  border-radius: 10px;
  padding: 30px 25px;
  transition: all 0.3s ease;
}

.career-card:hover {
  border-color: #ff6b6b;
  box-shadow: 0 8px 20px rgba(255, 107, 107, 0.15);
}

.career-card h3 {
  font-size: 1.92rem;
  font-weight: 700;
  color: #ff6b6b;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #ff6b6b;
}

.career-card ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 25px;
}

.career-card ul li {
  padding-left: 20px;
  margin-bottom: 12px;
  position: relative;
  font-size: 1.52rem;
  line-height: 1.6;
  color: #555;
}

.career-card ul li:before {
  content: "▸";
  color: #ff6b6b;
  position: absolute;
  left: 0;
  font-size: 1.44rem;
}

.btn-career {
  display: inline-block;
  padding: 12px 25px;
  background: #ff6b6b;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-size: 1.44rem;
  font-weight: 600;
  transition: all 0.3s ease;
  width: 100%;
  text-align: center;
}

.btn-career:hover {
  background: #e65555;
}

/* リンクボタン */
.link-buttons {
  margin-top: 60px;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  max-width: 800px;
  margin: 0 auto;
}

.link-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 1.92rem;
  font-weight: 700;
  color: white;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.exam-button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.exam-button:hover {
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
  transform: translateY(-3px);
}

.career-button {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.career-button:hover {
  box-shadow: 0 8px 20px rgba(245, 87, 108, 0.3);
  transform: translateY(-3px);
}

.button-icon {
  font-size: 2.4rem;
  margin-right: 15px;
}

/* 他学部リンク */
.other-faculties {
  margin-top: 60px;
  padding-top: 60px;
  border-top: 2px solid #e0e0e0;
}

.faculty-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.faculty-link {
  display: block;
  padding: 30px 25px;
  border-radius: 10px;
  text-decoration: none;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.faculty-link.sci {
  background: linear-gradient(135deg, #f2c3d8 0%, #a00050 100%);
}

.faculty-link.env {
  background: linear-gradient(135deg, #5ae06f 0%, #3ab55a 100%);
}

.faculty-link.che {
  background: linear-gradient(135deg, #00bbff 0%, #0088cc 100%);
}

.faculty-link.grad {
  background: linear-gradient(135deg, #ffcc00 0%, #ff9900 100%);
}

.faculty-link:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.faculty-link h3 {
  font-size: 2.08rem;
  font-weight: 700;
  color: white;
  margin-bottom: 10px;
}

.faculty-link p {
  font-size: 1.36rem;
  color: rgba(255, 255, 255, 0.9);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .main-content .container {
    padding: 30px 15px;
  }

  .section-title {
    font-size: 2.56rem;
    margin-bottom: 30px;
  }

  .subsection-title {
    font-size: 2.24rem;
    margin-top: 40px;
    margin-bottom: 20px;
  }

  .lead-text {
    font-size: 1.76rem;
  }

  .side-concept,
  .global-section,
  .department-intro {
    padding: 40px 20px;
  }

  .side-grid,
  .tech-grid,
  .dept-grid,
  .career-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .button-grid {
    grid-template-columns: 1fr;
  }

  .faculty-links {
    grid-template-columns: 1fr;
  }
}